Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMAZDA1991RX-7 BASE, 2D CONVERTIBLE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES
1991 Mazda RX-7 Base, 2D Convertible, Standard
Engine Controls - Tests W/Codes
1991 Mazda RX-7 Base, 2D Convertible, StandardSECTION Engine Controls - Tests W/Codes
- Self-Diagnostic System Introduction
- Retrieving Codes
- Clearing Codes
- Summary
- Trouble Code Identification Chart
- Notes
- Trouble Code Identification Table
- Code 1: Ignition Coil Signal
- Code 2: Ne Signal-Crank Angle Sensor
- Code 3: G-Signal-Crank Angle Sensor
- Code 5: Knock Sensor (Turbo)
- Code 8: Airflow Meter
- Code 9: Water THERMOSENSOR
- Code 10: Intake Air Temp Sensor-Airflow Meter
- Code 11: Intake Air Temp Sensor-Engine
- Code 12: Throttle Sensor
- Code 13: Pressure Sensor
- Code 14: Atmospheric Pressure Sensor
- Code 15: Oxygen Sensor
- Code 17: Feedback System
- Code 18: Throttle Sensor
- Code 20: Metering Oil Pump Position Sensor
- Code 25: Pressure Regulator Control Solenoid
- Code 26: Metering Oil Pump Stepping Motor
- Code 27: Metering Oil Pump
- Code 30: Split Air Solenoid Valve
- Code 31: Relief Solenoid Valve
- Code 32: Switch Solenoid Valve
- Code 33: Port Air Solenoid Valve
- Code 34: By-Pass Air Control Solenoid Valve
- Code 37: Metering Oil Pump
- Code 40: Auxiliary Port Valve
- Code 41: Variable Dynamic Effect Intake
- Code 42: Duty Solenoid-Turbo Boost
- Code 51: Fuel Pump Resistor
- Code 71: Front Secondary Injector
- Code 73: Rear Secondary Injector
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.